EASY
11th Odisha Board
IMPORTANT
Earn 100

Explain why melting point of ice decreases whereas that of wax increases with increase of pressure?

Important Questions on Heat Phenomena

EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 16 - Heat Phenomena>MODEI. QUESTIONS>Q 7
What is the height from which a piece of ice should be dropped so that it completely melts on hitting the ground?
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 16 - Heat Phenomena>MODEI. QUESTIONS>Q 8
Give reasons why temperature of ice is lowered when salt is added to it.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 16 - Heat Phenomena>MODEI. QUESTIONS>Q 9

Why is iron tyre of a cartwheel so tightly fitted?

EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 16 - Heat Phenomena>MODEI. QUESTIONS>Q 10
An isotropic solid, cube has side length 100 cm at 30°C and 100.04 cm at 50°C. Compute α, β and γ.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 16 - Heat Phenomena>MODEI. QUESTIONS>Q 11
A sheet of copper α=1.7×10-5 C0-1 has an area of 1 m2 at 0°C. Find its area at 30°C.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 16 - Heat Phenomena>MODEI. QUESTIONS>Q 12
Establish relation between α and β.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 16 - Heat Phenomena>MODEI. QUESTIONS>Q 13
Establish relation between α and γ.
EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 16 - Heat Phenomena>MODEI. QUESTIONS>Q 14
Why do water pipes burst in cold countries?